{"cik":763563,"taxonomy":"us-gaap","tag":"EarningsPerShareBasicAndDiluted","label":"Earnings Per Share, Basic and Diluted","description":"The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.","entityName":"CHEMUNG FINANCIAL CORP","units":{"USD/shares":[{"start":"2011-01-01","end":"2011-03-31","val":0.46,"accn":"0000763563-12-000095","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-14","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":1.04,"accn":"0000763563-12-000133","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-08-13"},{"start":"2011-04-01","end":"2011-06-30","val":0.57,"accn":"0000763563-12-000133","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-08-13","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":1.76,"accn":"0000763563-12-000161","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-13"},{"start":"2011-07-01","end":"2011-09-30","val":0.71,"accn":"0000763563-12-000161","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-13","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":2.4,"accn":"0000763563-14-000057","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-14","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":0.78,"accn":"0000763563-12-000095","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-14","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":1.31,"accn":"0000763563-12-000133","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-08-13"},{"start":"2012-04-01","end":"2012-06-30","val":0.53,"accn":"0000763563-12-000133","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-08-13","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":1.92,"accn":"0000763563-12-000161","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-13"},{"start":"2012-07-01","end":"2012-09-30","val":0.61,"accn":"0000763563-12-000161","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-13","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":2.38,"accn":"0000763563-14-000057","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-14"},{"start":"2012-01-01","end":"2012-12-31","val":2.38,"accn":"0000763563-15-000045","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-13","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":0.52,"accn":"0000763563-14-000073","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":1.09,"accn":"0000763563-14-000091","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-04-01","end":"2013-06-30","val":0.57,"accn":"0000763563-14-000091","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":1.56,"accn":"0000763563-14-000118","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-17"},{"start":"2013-07-01","end":"2013-09-30","val":0.47,"accn":"0000763563-14-000118","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-17","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":1.87,"accn":"0000763563-14-000057","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-14"},{"start":"2013-01-01","end":"2013-12-31","val":1.87,"accn":"0000763563-15-000045","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-13"},{"start":"2013-01-01","end":"2013-12-31","val":1.87,"accn":"0000763563-16-000156","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-11","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":0.44,"accn":"0000763563-14-000073","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":0.44,"accn":"0000763563-15-000056","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":0.85,"accn":"0000763563-14-000091","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-06-30","val":0.85,"accn":"0000763563-15-000077","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-07"},{"start":"2014-04-01","end":"2014-06-30","val":0.41,"accn":"0000763563-14-000091","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":0.41,"accn":"0000763563-15-000077","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-07","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":0.79,"accn":"0000763563-14-000118","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-17"},{"start":"2014-01-01","end":"2014-09-30","val":0.79,"accn":"0000763563-15-000086","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-07-01","end":"2014-09-30","val":-0.07,"accn":"0000763563-14-000118","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-17"},{"start":"2014-07-01","end":"2014-09-30","val":-0.07,"accn":"0000763563-15-000086","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":1.74,"accn":"0000763563-15-000045","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-13"},{"start":"2014-01-01","end":"2014-12-31","val":1.74,"accn":"0000763563-16-000156","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-11"},{"start":"2014-01-01","end":"2014-12-31","val":1.74,"accn":"0000763563-17-000052","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-08","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":0.48,"accn":"0000763563-15-000056","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":0.48,"accn":"0000763563-16-000171","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-06","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":1.03,"accn":"0000763563-15-000077","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-07"},{"start":"2015-01-01","end":"2015-06-30","val":1.03,"accn":"0000763563-16-000189","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":0.55,"accn":"0000763563-15-000077","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-07"},{"start":"2015-04-01","end":"2015-06-30","val":0.55,"accn":"0000763563-16-000189","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":1.55,"accn":"0000763563-15-000086","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":1.55,"accn":"0000763563-16-000205","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-02"},{"start":"2015-07-01","end":"2015-09-30","val":0.52,"accn":"0000763563-15-000086","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-07-01","end":"2015-09-30","val":0.52,"accn":"0000763563-16-000205","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-02","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":2,"accn":"0000763563-16-000156","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-11"},{"start":"2015-01-01","end":"2015-12-31","val":2,"accn":"0000763563-17-000052","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-08"},{"start":"2015-01-01","end":"2015-12-31","val":2,"accn":"0000763563-18-000053","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-08","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":0.57,"accn":"0000763563-16-000171","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-06"},{"start":"2016-01-01","end":"2016-03-31","val":0.57,"accn":"0000763563-17-000065","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-03","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":0.91,"accn":"0000763563-16-000189","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-06-30","val":0.91,"accn":"0000763563-17-000082","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-02"},{"start":"2016-04-01","end":"2016-06-30","val":0.34,"accn":"0000763563-16-000189","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":0.34,"accn":"0000763563-17-000082","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-02","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":1.49,"accn":"0000763563-16-000205","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-02"},{"start":"2016-01-01","end":"2016-09-30","val":1.49,"accn":"0000763563-17-000089","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-01"},{"start":"2016-07-01","end":"2016-09-30","val":0.58,"accn":"0000763563-16-000205","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-02"},{"start":"2016-07-01","end":"2016-09-30","val":0.58,"accn":"0000763563-17-000089","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-01","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":2.11,"accn":"0000763563-17-000052","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-08"},{"start":"2016-01-01","end":"2016-12-31","val":2.11,"accn":"0000763563-18-000053","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-08"},{"start":"2016-01-01","end":"2016-12-31","val":2.11,"accn":"0000763563-19-000080","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-13","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":0.62,"accn":"0000763563-17-000065","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-03"},{"start":"2017-01-01","end":"2017-03-31","val":0.62,"accn":"0000763563-18-000062","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-02","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":1.24,"accn":"0000763563-17-000082","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-02"},{"start":"2017-01-01","end":"2017-06-30","val":1.24,"accn":"0000763563-18-000080","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-01"},{"start":"2017-04-01","end":"2017-06-30","val":0.62,"accn":"0000763563-17-000082","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-02"},{"start":"2017-04-01","end":"2017-06-30","val":0.62,"accn":"0000763563-18-000080","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-01","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":2,"accn":"0000763563-17-000089","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-01"},{"start":"2017-01-01","end":"2017-09-30","val":2,"accn":"0000763563-18-000096","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-10-31"},{"start":"2017-07-01","end":"2017-09-30","val":0.76,"accn":"0000763563-17-000089","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-01"},{"start":"2017-07-01","end":"2017-09-30","val":0.76,"accn":"0000763563-18-000096","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-10-31","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":1.55,"accn":"0000763563-18-000053","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-08"},{"start":"2017-01-01","end":"2017-12-31","val":1.55,"accn":"0000763563-19-000080","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-13"},{"start":"2017-01-01","end":"2017-12-31","val":1.55,"accn":"0000763563-20-000052","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-12","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":0.92,"accn":"0000763563-18-000062","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-02"},{"start":"2018-01-01","end":"2018-03-31","val":0.92,"accn":"0000763563-19-000086","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-06","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":1.44,"accn":"0000763563-18-000080","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-01"},{"start":"2018-01-01","end":"2018-06-30","val":1.44,"accn":"0000763563-19-000098","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-08"},{"start":"2018-04-01","end":"2018-06-30","val":0.52,"accn":"0000763563-18-000080","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-01"},{"start":"2018-04-01","end":"2018-06-30","val":0.52,"accn":"0000763563-19-000098","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-08","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":2.88,"accn":"0000763563-18-000096","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-10-31"},{"start":"2018-01-01","end":"2018-09-30","val":2.88,"accn":"0000763563-19-000107","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":1.43,"accn":"0000763563-18-000096","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-10-31"},{"start":"2018-07-01","end":"2018-09-30","val":1.43,"accn":"0000763563-19-000107","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":4.06,"accn":"0000763563-19-000080","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-13"},{"start":"2018-01-01","end":"2018-12-31","val":4.06,"accn":"0000763563-20-000052","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-12"},{"start":"2018-01-01","end":"2018-12-31","val":4.06,"accn":"0000763563-21-000045","fy":2020,"fp":"FY","form":"10-K","filed":"2021-03-24","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":0.92,"accn":"0000763563-19-000086","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-06"},{"start":"2019-01-01","end":"2019-03-31","val":0.92,"accn":"0000763563-20-000077","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-08","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":1.94,"accn":"0000763563-19-000098","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-08"},{"start":"2019-01-01","end":"2019-06-30","val":1.94,"accn":"0000763563-20-000088","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-06"},{"start":"2019-04-01","end":"2019-06-30","val":1.02,"accn":"0000763563-19-000098","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-08"},{"start":"2019-04-01","end":"2019-06-30","val":1.02,"accn":"0000763563-20-000088","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-06","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":2.34,"accn":"0000763563-19-000107","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":2.34,"accn":"0000763563-20-000094","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-05"},{"start":"2019-07-01","end":"2019-09-30","val":0.4,"accn":"0000763563-19-000107","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":0.4,"accn":"0000763563-20-000094","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-05","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":3.21,"accn":"0000763563-20-000052","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-12"},{"start":"2019-01-01","end":"2019-12-31","val":3.21,"accn":"0000763563-21-000045","fy":2020,"fp":"FY","form":"10-K","filed":"2021-03-24","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":0.51,"accn":"0000763563-20-000077","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-08"},{"start":"2020-01-01","end":"2020-03-31","val":0.51,"accn":"0000763563-21-000060","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-12","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":1.71,"accn":"0000763563-20-000088","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-06"},{"start":"2020-04-01","end":"2020-06-30","val":1.2,"accn":"0000763563-20-000088","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-06","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-09-30","val":2.9,"accn":"0000763563-20-000094","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-05"},{"start":"2020-07-01","end":"2020-09-30","val":1.19,"accn":"0000763563-20-000094","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-05","frame":"CY2020Q3"},{"start":"2020-01-01","end":"2020-12-31","val":4.01,"accn":"0000763563-21-000045","fy":2020,"fp":"FY","form":"10-K","filed":"2021-03-24","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":1.39,"accn":"0000763563-21-000060","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-12","frame":"CY2021Q1"}]}}